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• #Creating a mac flash boot disk for high sierra how to#

Close the installer if it opens automatically once downloaded.

#Creating a mac flash boot disk for high sierra how to#

How to create an executable USB with MacOSĪpple has finally made things easy for us and we don’t have to do very complicated things to create an executable USB disk that allows us to install MacOS from scratch. Since we want to improve the performance of our computer: it is best to perform a completely clean installation and then copy only the data and programs that interest us. Is it better to do this than recovering a copy of Time Machine? Yes. Start the Boot Manager, which allows you to choose other disks or boot volumes if available. How to boot a Mac from a USB with the Option (⌥) key?

The first thing to do before changing the hard disk or before installing the new OS is to prepare a USB stick with MacOS to reinstall the operating system on our Macbook. Do you know how to boot a Mac from a USB? Do you have an iMac or a Macbook Pro already with a few years under its belt and want to give it new life by installing a new solid hard drive SSD? Do you want to install Apple’s operating system from scratch on your Mac?